Bosch Bare-Tool PS10B 12-Volt Max Lithium-Ion 1/4-Inch Hex Articulating i-Driver 80-Inch lbs of Torque - Drives 100 3-Inch screws per battery charge Ultra-compact head length - 3.5-Inch total head length - 3 times shorter than most popular competitor 90-Degree articulating head - rotates and locks into five positions for increased versatility 7+1 Electronic clutch - precision driving, eliminates over torque in soft base materials. Drill mode allows pilot and other small bore holes. Quick change chuck - prevents bit loss in drill or drive mode - pull to insert or release 1/4-Inch hex shank bits